INTEGRATED STEEL MANUFACTURING

Built Across the  Steel Value Chain

From Sponge Iron to Value-Added Steel Products — delivering integrated manufacturing capabilities, operational efficiency and steel solutions across diverse industries.

“Our integrated manufacturing capabilities, diversified product portfolio and focus on quality enable us to serve a wide range of steel applications across India.”

Ashish Goel
Aaditya Enterprises, Raigarh

Our Products

Proven Durability, Guaranteed Satisfaction, and Superior Performance

Sponge Iron

Sponge iron is a metallic product produced through the direct reduction of iron ore and/or iron ore pellets, with a typical metallic iron content ranging from 80-88%. The manufacturing process is carried out in a rotary kiln operating at controlled rotational speeds and temperatures. It serves as a key raw material in steel manufacturing and is commonly used as a substitute for steel scrap in steel melting operations.

Billets and Slabs

Billets and slabs are semi-finished steel products that typically have square or rectangular cross-sections. They are produced through a melting and casting process, wherein sponge iron, scrap and other requisite raw materials and alloys are melted in induction furnaces to produce molten steel. The molten steel is then cast through a continuous casting process into billets and slabs of the desired dimensions, cross-sections and lengths. Billets and slabs are utilized in the manufacture of various downstream steel products, including TMT Bars, wire rods, and HR Coils.

TMT Bars

Following the production of billets through the continuous casting process, hot billets are directly transferred to our TMT mill through a hot charging process, which reduces heat loss and improves energy efficiency. The billets are then rolled through a series of rolling stands to achieve the desired size and shape and subsequently subjected to a thermo-mechanical treatment process involving rapid water quenching followed by self-tempering and atmospheric cooling. The finished TMT Bars are then cut, bundled and dispatched for sale. Our TMT Bars are manufactured using THERMEX® Quenched and Self-Tempered (“QST”) technology, developed in Germany, which enables the production of high-strength reinforcement bars with superior mechanical properties, ductility and weldability.

HR Colis

Following the production of slabs through the continuous casting process, hot slabs are directly transferred to our hot strip mill through a hot charging process, which reduces heat loss and improves energy efficiency. The slabs are then passed through a series of rolling stands where they are progressively reduced in thickness and formed into strips of the desired dimensions. Our hot strip mill is a 4-Hi rolling mill and is equipped with Automatic Gauge Control (“AGC”) technology, which enables precise control over strip thickness and helps minimize thickness variation in HR Coils. The rolled strips are subsequently cooled, coiled and prepared for dispatch.

Ferro Alloys

Silico manganese is a ferro alloy primarily used in steel manufacturing as a deoxidizing and alloying agent to improve the strength, hardness and wear resistance of steel. The manufacturing process involves smelting manganese ore, quartz and reductants such as coke in a submerged arc furnace at high temperatures. The raw materials undergo reduction and smelting reactions to produce molten silico manganese alloy, which is then tapped from the furnace, cooled and solidified. Thereafter, the alloy is crushed, screened and sized according to customer specifications before being dispatched.

ERW Pipes and Tubes

The manufacturing process involves uncoiling and slitting HR Coils into strips of the required width, which are then progressively formed into a tubular shape through a series of forming rolls. The edges of the formed strip are joined using electric resistance welding (“ERW”), wherein heat generated by electrical resistance is used to weld the edges together. The welded pipes are subsequently sized, straightened and cut to the required lengths before being bundled and dispatched to customers.

Wire Rods

Following the production of billets through the continuous casting process, hot billets are directly transferred to our wire rod mill through a hot charging process, which reduces heat loss and improves energy efficiency. The billets are then passed through a series of rolling stands where they are progressively reduced in cross-section and rolled into wire rods of the desired dimensions. The wire rods are subsequently cooled, wound into coils and prepared for dispatch.

AbouT BS Sponge Limited

Empowering Growth, Ensuring Quality!

B.S. Sponge Limited, (formerly B.S. Sponge Private Limited), is an integrated steel manufacturer with operations spanning the steel value chain, from sponge iron to value-added finished steel products.
Established in 2005 with a 30,000 TPA sponge iron kiln, the company has grown through continuous capacity expansion and forward integration. As of March 31, 2026, it has an aggregate installed capacity of 1,627,500 TPA and 67 MW captive power generation capacity.
Its diversified product portfolio includes sponge iron, billets and slabs, TMT bars, hot-rolled coils, wire rods, ERW pipes and tubes, and ferro alloys, primarily silico manganese.

Years of Expertise

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Experience of

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BS Sponge Limited journey

Tracing Our Path to Excellence in Steel Manufacturing

2005

Sponge iron

Commenced manufacturing sponge iron with one rotary kiln having an installed capacity of 30,000 ΤΡΑ

2019

Billets

Commenced manufacturing billets and slabs 120,000 ΤΡΑ and commissioned 12 MW captive power plant